Well since it was not last year, it can only be 1 year, so for 2014:
Louisville - 4 seed - RPI 19, Kenpom 3, BPI 3 - Awful seed by the metrics, in line with RPI
Cincy - 5 seed - RPI 20 - Kenpom 25, BPI 24 - Seed in line with all the number
UConn - 7 seed - RPI 23 - Kenpom 26, BPI 18 - Very bad seed, should have been a 5
Memphis - 8 seed - RPI 34 - Kenpom 46, BPI 43 - Seed may be a little generous, in line with RPI but not metrics
SMU - Out - RPI 53 - Kenpom 64, BPI 31 - BPI is only metric supporting their inclusion.
So 2 seeds were poorly seeded that year and 3 were seeded properly, so in the last two years, 3 teams were seeded poorly and 5 were seeded properly.
I do not think any of the poorly seeded teams were egregious mistakes (except maybe UConn but that worked out OK), and when you take into account all the factors of seeding (location, conferences matching up, ect.) it is not as bad people make it out to be and no team has been left that out that should definitely been in he tournament.
Point is if UConn has the numbers to be in they will be in.